Process for the preparation of a cosmetic extract from marine ooze

ABSTRACT

The invention relates to a process for the preparation of extracts from marine ooze. To extract a larger proportion of the cosmetically and balneologically active ingredients from the ooze, the process proposes paraffinum subliquidum, ethanol, dimethicone a water/ethanol mixture and a mixture of water/ethanol/glycerin/propylene glycol. The mixture is extracted while stirring it either for 24 to 30 hours at room temperature or 1 to 3 hours at 50° to 70° C. and is filtered. The filtrate has a proportion of active ingredients from the marine ooze.

FIELD OF THE INVENTION

The invention relates to a process for the preparation of a cosmeticallyusable extract from marine ooze and a product including an extract frommarine ooze, and its use.

BACKGROUND OF THE INVENTION

Organ extracts and plant extracts have been popular additives and, ifexperts feel, efficient additives for years, specifically for cosmeticproducts of very different types. It is known to employ balneologicalpacks and facial masks on the basis of marine ooze. Superior-valueproducts such as cosmetic creams, lotions, and cosmetic liquids couldnot be prepared because of the high insoluble proportions in the marineooze.

A process for the preparation of an extract from German Sea ooze isknown from the German Patent 31 13 287. The disadvantage of this processis that it incorporates only some part of the efficient ingredients ofthe German Sea ooze and, therefore, is only of a limited efficiency.Also, the process involves comparatively high expenditure inimplementing it.

A cosmetic creme facial mask including marine ooze and a process for itspreparation has been known from DE 3 221 502 A1. The cosmetic cremefacial mask contains 10-40% of dried marine ooze. Both an oil-in-watercreme and a water-in-oil creme may be used as a basis of the creme. Themarine ooze is selected in such a way that mineral particles 50-100 μmin size are contained. To prepare the creme facial mask, the dry ooze isadded to the emulsion when still hot after the creme basis is emulsifiedand, subsequently, the emulsion is stirred when cold. The facial maskserves for care and massage. At the same time, a cosmetic effect makesitself felt because of the ooze ingredients fed in by the dry ooze.

BRIEF SUMMARY OF THE INVENTION

It is the object of the invention to provide an extract from marine oozeand a process for the preparation of a cosmetically used extract frommarine ooze which achieves substantially better yields and isimplementable at a lower expenditure.

DETAILED DESCRIPTION OF INVENTION

The surprising result was that one of the following formulation examplesallows one to simultaneously extract both the water soluble constituentsof the marine ooze and the other ones which both are particularimportant for a cosmetic effect:

Formulation example 1 Paraffinum subliquidum 100 parts by weight Driedpulverulent ooze  50 parts by weight

Formulation example 2 Ethanol 100 parts by weight Dried pulverulent ooze 50 parts by weight

Formulation example 3 Dimethicone (silicone oil) 100 parts by weightDried pulverulent ooze  50 parts by weight

Formulation example 4 Water 80 parts by weight Ethanol 20 parts byweight Dried pulverulent ooze 50 parts by weight

According to the invention, the above-mentioned extractant is mixed withcomminuted ooze. The mixture is extracted by stirring the constituentsfor 1 to 3 hours at 50 to 70° C. Alternatively, the mixture may also bestirred for 24 to 30 hours at room temperature. The mixture is filteredsubsequently.

Another formulation example which is particularly preferred replaces theweight proportions indicated for water in formulation example 4 with amixture of water, glycerin, and propylene glycol.

Formulation example 4b Water  5-15 parts by weight Glycerin 35-40 partsby weight Propylene glycol 25-30 parts by weight Ethanol 15-25 parts byweight Dried pulverulent ooze 45-55 parts by weight

The mixture thus prepared from an extractant and pulverulent ooze isstirred for 1 to 3 hours at 50 to 70° C. and is filtered subsequently.The extract obtained after filtration is of a yellowish color whichmakes it possible to process it particularly well in a neutral color inother products.

Preferably, the ratio between the dried pulverulent ooze and theextractant is about 1:2 by weight. This mixing ratio ensures that theconstituents contained in the ooze are reliably extracted.

In a preferred continuation of the process for formulation example 4b,the pulverulent ooze is weighed out and water is added thereto whilestirring, in a first step. The addition of propylene glycol and glycerinis effected subsequently with the suspension being stirred for about 1hour while being slowly heated up to about 60° C. The mixture cools downto room temperature subsequently. Ethanol is added afterwards and thesuspensions is stirred for about 2 hours.

Preferably, the ooze extract thus obtained rests for about 24 hours,which achieves a separation of the solid phase and the liquid phase. Theprocess thus carried out for the preparation of an extract from ooze canbe implemented rapidly and at a low cost.

Preferably, the ooze extract is roughly filtered first and is finelyfiltered subsequently for its filtration. Filter paper, particularlycellulose filter paper, is preferably used for fine filtration.

The inventive object is also attained by a product for cosmeticapplication which includes an extract from ooze, specifically marineooze, in which the efficient substances of the ooze are extractedaccording to the above process.

The marine ooze extract prepared according to the inventive process issuited particularly well for being used in cosmetic products of verydifferent types. In particular, the extract may be used in a pure formor as a proportion of conventional cosmetic products. Using it in caseof problematic skin conditions is particularly advantageous.

Dermatological tests have shown that if the extract thus obtained fromooze is used it will result in a significant improvement in the skinmoisture of human beings. Test series have shown that if a preparationincluding an extract from marine ooze is used in the lower-arm area overa period of 4 weeks a pronounced improvement is reached in skinmoisture.

The application example below is intended to elucidate the details ofthe inventive process in more detail.

The material to start from is marine ooze which is used in the followingapproximate composition of its mineral constituents:

24 to 56% sand,

70 to 90% silt,

10 to 22% clay.

An ooze of this composition is referred to as “sandy ooze”. Apart fromthe mineral constituents, the sandy ooze has a multitude ofmacroscopically perceivable living beings such as sandworms, cockles,tellins, and scrobicularia.

This marine ooze and, hence, the living beings contained therein arecomminuted and are blended with an extractant mixture according to oneof the above-indicated formulation examples. In a first preparationprocess, the constituents are stirred for 1 to three hours at 50 to 70°C. and are filtered subsequently. The filtrate, prior to its use incosmetic products, is filled into aluminum bottles and is kept in arefrigerator.

In a second preparation example, the mixed constituents are stirred for24 to 30 hours at room temperature. Filtration is done subsequently andthe filtrate, prior to its use in cosmetic products, is filled intoaluminum bottles and is kept in a refrigerator.

The present invention provides the possibility to incorporate theorganic, cosmetically active substances of the marine ooze also inhigh-quality cosmetic products. The above-mentioned extractants are alsosuited for use in other natural mixtures of biological breakdownproducts.

What is claimed is:
 1. A process for the preparation of a cosmetically usable extract from marine ooze, characterized in that; a) dried, pulverulent marine ooze is mixed with an extractant of about 10 parts by weight of water, 40 parts by weight of glycerin, 30 parts by weight of propylene glycol and 20 parts by weight of ethanol to form a mixture, b) stirring the mixture from part (a) for 1 to 2 hours at 50° C. to 70° C., and c) filtering to recover a cosmetically usable extract.
 2. A process for the preparation of a cosmetically usable extract from marine ooze characterized in that; a) dried, pulverulent marine ooze is weighed, b) water is added to the weighed pulverulent marine ooze to form a mixture, c) the mixture from part (b) is stirred, d) propylene glycerol and glycerin are added to the stirred mixture from part (c) to form a second mixture, e) said second mixture from part (d) is stirred for about 1 hour while heating to about 60° C. to form a heated mixture, f) cooling said heated mixture from part (e) to room temperature to form a cooled mixture, g) adding ethanol to the cooled mixture of part (f), h) stirring for about 2 hours, and i) filtering to recover a cosmetically usable extract.
 3. The process as claimed in claim 2, characterized in that the mixture of step b) of claim 2 is allowed to rest for about 24 hours, which achieves a separation of the solid phase and the liquid phase before the filtering step.
 4. The process of claim 3, wherein filtering comprises rough filtration followed by fine filtration.
 5. The process as claimed in claim 4, characterized in that cellulose filter paper is used for fine filtration.
 6. The process as claimed in claim 2, characterized in that the ratio of the dried pulverulent ooze and the extractant is approximately 1:2 by weight. 